Atypical Mycoplasma pneumoniae Infection Presenting With Abdominal Pain in a Four-Year-Old Boy: A Case Report
Bibliographic record
Abstract
Mycoplasma pneumoniae (M. pneumoniae) infections typically affect the respiratory system but can also present with extrapulmonary manifestations, including gastrointestinal involvement. We report the case of a four-year-old boy who presented with abdominal pain and fever, with minimal respiratory symptoms throughout the course of his illness. Despite initial treatment with clarithromycin, his symptoms persisted, and the chest radiographic findings showed worsening pneumonia. Imaging revealed small bowel fluid retention and impaired intestinal motility, suggesting gastrointestinal involvement likely mediated by immune mechanisms. Laboratory findings included elevated lactate dehydrogenase (LDH) levels and mild liver dysfunction, consistent with systemic inflammation. The patient was treated with tosufloxacin and corticosteroids, which led to clinical improvement and symptom resolution. This case highlights the diagnostic challenge posed by atypical presentations of M. pneumoniae infection, particularly in young children with minimal respiratory symptoms. Intestinal involvement, although rare, should be considered a potential extrapulmonary manifestation. Elevated LDH levels and poor response to macrolide therapy can indicate refractory or macrolide-resistant cases, necessitating alternative treatments such as corticosteroids and fluoroquinolones. Clinicians should be aware of these atypical presentations to ensure early diagnosis and tailored therapy, improving outcomes in pediatric patients with unusual manifestations of M. pneumoniae infections.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.003 | 0.002 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.004 | 0.002 |
| Scholarly communication | 0.002 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.005 | 0.004 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".